web space (palmar)
Last reviewed 01/2018
There are three palmar web spaces in each hand. They lie between the attachments of the palmar aponeurosis, from metacarpophalangeal level to the web skin margin distally.
Relations:
- dorsally: skin superficial to deep transverse metacarpal ligament
- volarly: skin superficial to superficial transverse metacarpal ligament
- radially and ulnarly: digital nerves on palmar side of digital vessels, tendons of interossei and lumbricals
The web space is filled with fibrofatty material.